On Wed, 15 Jul 2020 20:37:16 +0430 ahmadkhorrami <ahmadkhorr...@ut.ac.ir> wrote:
> Hi, > What is the most efficient way to capture occurrence of a function > call/return of a binary program in userspace? > It seems the answer is Uprobes. 1) Am I right? > But Uprobes use "int" instruction which leads to a switch into kernel > mode. 2) Wouldn't it be better to avoid this transition? > I'm looking forward to your reply and will be happy to read your > opinions. > Regards. Hi, I believe LTTng has utilities that can help you trace user space programs. I think there's also a users ftrace like utility that Namhyung was working on. But I don't know where in the development that is. -- Steve _______________________________________________ lttng-dev mailing list lttng-dev@lists.lttng.org https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
